1662820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1171}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 3544128

約数和(自身を除く): 1881308

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1171, 1420, 2342, 4684, 5855, 11710, 23420, 83141, 166282, 332564, 415705, 831410, 1662820]

約数ペア:

[(1, 1662820), (2, 831410), (4, 415705), (5, 332564), (10, 166282), (20, 83141), (71, 23420), (142, 11710), (284, 5855), (355, 4684), (710, 2342), (1171, 1420)]